// RUN: not %target-swift-frontend %s -parse

// Distributed under the terms of the MIT license
// Test case submitted to project by https://github.com/practicalswift (practicalswift)
// Test case found by fuzzing

func a: a {
protocol f : a {
typealias b : ih ml]
enum b : Range<d>(f<U, j: SequenceType, U) as a<e
protocol a {
r : T! {
}
struct d
